c-decl.c, [...]: Don't check TARGET_MEM_FUNCTIONS.
* c-decl.c, config/m32r/m32r.c, expr.c, optabs.c: Don't check TARGET_MEM_FUNCTIONS. * system.h: Poison TARGET_MEM_FUNCTIONS. * libfuncs.h (LTI_bcopy, LTI_bcmp, LTI_bzero, bcopy_libfunc, bcmp_libfunc, bzero_libfunc): Remove. * optabs.c (init_obtabs): Don't set bcopy_libfunc, bcmp_libfunc or bzero_libfunc. * doc/tm.texi (TARGET_MEM_FUNCTIONS): Remove. * doc/standards.texi: Don't mention calling BSD string functions. * doc/invoke.texi: Likewise. Mention that memmove may be called. * config/vax/t-memfuncs: New. * config/memcmp.c, config/memcpy.c, config/memmove.c, config/memset.c: New. * config/pdp11/t-pdp11 (LIB2FUNCS_EXTRA): Use these files. * config.gcc (vax-*-bsd*, vax-*-sysv*, vax-*-ultrix*): Use vax/t-memfuncs. * config/alpha/alpha.h, config/arc/arc.h, config/arm/arm.h, config/avr/avr.h, config/c4x/c4x.h, config/cris/aout.h, config/elfos.h, config/gnu.h, config/h8300/h8300.h, config/i386/gas.h, config/ia64/ia64.h, config/interix.h, config/ip2k/ip2k.h, config/lynx-ng.h, config/m32r/m32r.h, config/mcore/mcore.h, config/mips/mips.h, config/mmix/mmix.h, config/netbsd.h, config/openbsd.h, config/pa/pa.h, config/rs6000/rs6000.h, config/rtems.h, config/s390/s390.h, config/sh/sh.h, config/sparc/sparc.h, config/stormy16/stormy16.h, config/svr3.h: Don't define TARGET_MEM_FUNCTIONS. From-SVN: r84130
This commit is contained in:
Joseph Myers
Joseph Myers
parent
bd4c825020
commit
8f99553ff6
45 changed files with 136 additions and 265 deletions
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@ -1,3 +1,32 @@
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2004-07-05 Joseph S. Myers <jsm@polyomino.org.uk>
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* c-decl.c, config/m32r/m32r.c, expr.c, optabs.c: Don't check
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TARGET_MEM_FUNCTIONS.
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* system.h: Poison TARGET_MEM_FUNCTIONS.
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* libfuncs.h (LTI_bcopy, LTI_bcmp, LTI_bzero, bcopy_libfunc,
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bcmp_libfunc, bzero_libfunc): Remove.
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* optabs.c (init_obtabs): Don't set bcopy_libfunc, bcmp_libfunc or
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bzero_libfunc.
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* doc/tm.texi (TARGET_MEM_FUNCTIONS): Remove.
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* doc/standards.texi: Don't mention calling BSD string functions.
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* doc/invoke.texi: Likewise. Mention that memmove may be called.
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* config/vax/t-memfuncs: New.
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* config/memcmp.c, config/memcpy.c, config/memmove.c,
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config/memset.c: New.
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* config/pdp11/t-pdp11 (LIB2FUNCS_EXTRA): Use these files.
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* config.gcc (vax-*-bsd*, vax-*-sysv*, vax-*-ultrix*): Use
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vax/t-memfuncs.
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* config/alpha/alpha.h, config/arc/arc.h, config/arm/arm.h,
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config/avr/avr.h, config/c4x/c4x.h, config/cris/aout.h,
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config/elfos.h, config/gnu.h, config/h8300/h8300.h,
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config/i386/gas.h, config/ia64/ia64.h, config/interix.h,
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config/ip2k/ip2k.h, config/lynx-ng.h, config/m32r/m32r.h,
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config/mcore/mcore.h, config/mips/mips.h, config/mmix/mmix.h,
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config/netbsd.h, config/openbsd.h, config/pa/pa.h,
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config/rs6000/rs6000.h, config/rtems.h, config/s390/s390.h,
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config/sh/sh.h, config/sparc/sparc.h, config/stormy16/stormy16.h,
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config/svr3.h: Don't define TARGET_MEM_FUNCTIONS.
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2004-07-05 Richard Henderson <rth@redhat.com>
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* function.c (assign_parm_setup_reg): Properly rename variables in
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@ -2944,17 +2944,10 @@ finish_decl (tree decl, tree init, tree asmspec_tree)
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tree builtin = built_in_decls [DECL_FUNCTION_CODE (decl)];
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SET_DECL_RTL (builtin, NULL_RTX);
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change_decl_assembler_name (builtin, get_identifier (starred));
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#ifdef TARGET_MEM_FUNCTIONS
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if (DECL_FUNCTION_CODE (decl) == BUILT_IN_MEMCPY)
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init_block_move_fn (starred);
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else if (DECL_FUNCTION_CODE (decl) == BUILT_IN_MEMSET)
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init_block_clear_fn (starred);
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#else
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if (DECL_FUNCTION_CODE (decl) == BUILT_IN_BCOPY)
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init_block_move_fn (starred);
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else if (DECL_FUNCTION_CODE (decl) == BUILT_IN_BZERO)
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init_block_clear_fn (starred);
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#endif
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}
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SET_DECL_RTL (decl, NULL_RTX);
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change_decl_assembler_name (decl, get_identifier (starred));
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@ -2012,11 +2012,13 @@ v850-*-*)
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;;
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vax-*-bsd*) # VAXen running BSD
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tm_file="${tm_file} vax/bsd.h"
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tmake_file=vax/t-memfuncs
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use_collect2=yes
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use_fixproto=yes
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;;
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vax-*-sysv*) # VAXen running system V
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tm_file="${tm_file} vax/vaxv.h"
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tmake_file=vax/t-memfuncs
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use_fixproto=yes
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;;
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vax-*-netbsdelf*)
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@ -2034,6 +2036,7 @@ vax-*-openbsd*)
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;;
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vax-*-ultrix*) # VAXen running ultrix
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tm_file="${tm_file} vax/ultrix.h"
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tmake_file=vax/t-memfuncs
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use_fixproto=yes
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;;
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xscale-*-elf)
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@ -1835,6 +1835,3 @@ do { \
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/* The system headers under Alpha systems are generally C++-aware. */
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#define NO_IMPLICIT_EXTERN_C
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/* Generate calls to memcpy, etc., not bcopy, etc. */
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#define TARGET_MEM_FUNCTIONS 1
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@ -802,11 +802,6 @@ do { \
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emit_insn (gen_flush_icache (validize_mem (gen_rtx_MEM (SImode, TRAMP)))); \
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} while (0)
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/* Library calls. */
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/* Generate calls to memcpy, memcmp and memset. */
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#define TARGET_MEM_FUNCTIONS
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/* Addressing modes, and classification of registers for them. */
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/* Maximum number of registers that can appear in a valid memory address. */
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@ -536,9 +536,6 @@ extern int arm_is_6_or_7;
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that is controlled by the APCS-FRAME option. */
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#define CAN_DEBUG_WITHOUT_FP
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#undef TARGET_MEM_FUNCTIONS
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#define TARGET_MEM_FUNCTIONS 1
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#define OVERRIDE_OPTIONS arm_override_options ()
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/* Nonzero if PIC code requires explicit qualifiers to generate
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@ -803,8 +803,6 @@ extern int avr_case_values_threshold;
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#define ADJUST_INSN_LENGTH(INSN, LENGTH) (LENGTH =\
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adjust_insn_length (INSN, LENGTH))
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#define TARGET_MEM_FUNCTIONS
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#define CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
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#define CC1_SPEC "%{profile:-p}"
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@ -1193,10 +1193,6 @@ CUMULATIVE_ARGS;
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fprintf (FILE, "\tpop\tar2\n"); \
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}
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/* Implicit Calls to Library Routines. */
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#define TARGET_MEM_FUNCTIONS
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/* CC_NOOVmode should be used when the first operand is a PLUS, MINUS, NEG
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or MULT.
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CCmode should be used when no special processing is needed. */
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@ -139,11 +139,6 @@ Boston, MA 02111-1307, USA. */
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#define MAX_OFILE_ALIGNMENT 16
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/* Node: Library Calls */
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#define TARGET_MEM_FUNCTIONS
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/* Node: Data Output */
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#define ESCAPES \
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@ -58,10 +58,6 @@ Boston, MA 02111-1307, USA. */
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#define PCC_BITFIELD_TYPE_MATTERS 1
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#endif
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/* Implicit library calls should use memcpy, not bcopy, etc. */
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#define TARGET_MEM_FUNCTIONS
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/* Handle #pragma weak and #pragma pack. */
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#define HANDLE_SYSV_PRAGMA 1
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@ -12,10 +12,6 @@
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#undef STANDARD_INCLUDE_DIR
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#define STANDARD_INCLUDE_DIR "/include"
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/* Implicit library calls should use memcpy, not bcopy, etc. */
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#undef TARGET_MEM_FUNCTIONS
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#define TARGET_MEM_FUNCTIONS
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/* The system headers under GNU are C++-aware. */
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#define NO_IMPLICIT_EXTERN_C
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@ -1138,12 +1138,6 @@ struct cum_arg
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#define FINAL_PRESCAN_INSN(insn, operand, nop) \
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final_prescan_insn (insn, operand, nop)
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/* Define this macro if GCC should generate calls to the System V
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(and ANSI C) library functions `memcpy' and `memset' rather than
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the BSD functions `bcopy' and `bzero'. */
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#define TARGET_MEM_FUNCTIONS
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#define MOVE_RATIO 3
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/* Define the codes that are matched by predicates in h8300.c. */
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@ -49,10 +49,6 @@ Boston, MA 02111-1307, USA. */
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#define ASM_OUTPUT_IDENT(FILE, NAME) fprintf (FILE, "\t.ident \"%s\"\n", NAME);
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/* Implicit library calls should use memcpy, not bcopy, etc. */
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#define TARGET_MEM_FUNCTIONS
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/* In the past there was confusion as to what the argument to .align was
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in GAS. For the last several years the rule has been this: for a.out
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file formats that argument is LOG, and for all other file formats the
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@ -1555,15 +1555,6 @@ do { \
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#define INITIALIZE_TRAMPOLINE(ADDR, FNADDR, STATIC_CHAIN) \
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ia64_initialize_trampoline((ADDR), (FNADDR), (STATIC_CHAIN))
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/* Implicit Calls to Library Routines */
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/* Define this macro if GCC should generate calls to the System V (and ANSI
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C) library functions `memcpy' and `memset' rather than the BSD functions
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`bcopy' and `bzero'. */
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#define TARGET_MEM_FUNCTIONS
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/* Addressing Modes */
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@ -22,10 +22,6 @@ along with GCC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef TARGET_MEM_FUNCTIONS
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#define TARGET_MEM_FUNCTIONS
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#endif
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/* POSIX/Uni-thread only for now. Look at the winnt version
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for windows/multi thread */
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@ -808,8 +808,6 @@ extern int ip2k_reorg_merge_qimode;
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#define FUNCTION_PROFILER(FILE, LABELNO) \
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fprintf ((FILE), "/* profiler %d */", (LABELNO))
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#define TARGET_MEM_FUNCTIONS
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#undef ENDFILE_SPEC
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#undef LINK_SPEC
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#undef STARTFILE_SPEC
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@ -64,10 +64,6 @@ Boston, MA 02111-1307, USA. */
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#define SDB_DEBUGGING_INFO 1
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/* Generate calls to memcpy, memcmp and memset. */
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#define TARGET_MEM_FUNCTIONS
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/* Handle #pragma pack and sometimes #pragma weak. */
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#define HANDLE_SYSV_PRAGMA 1
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@ -2601,19 +2601,11 @@ block_move_call (rtx dest_reg, rtx src_reg, rtx bytes_rtx)
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&& GET_MODE (bytes_rtx) != Pmode)
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bytes_rtx = convert_to_mode (Pmode, bytes_rtx, 1);
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#ifdef TARGET_MEM_FUNCTIONS
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emit_library_call (gen_rtx_SYMBOL_REF (Pmode, "memcpy"), 0,
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VOIDmode, 3, dest_reg, Pmode, src_reg, Pmode,
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convert_to_mode (TYPE_MODE (sizetype), bytes_rtx,
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TYPE_UNSIGNED (sizetype)),
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TYPE_MODE (sizetype));
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#else
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emit_library_call (gen_rtx_SYMBOL_REF (Pmode, "bcopy"), 0,
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VOIDmode, 3, src_reg, Pmode, dest_reg, Pmode,
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convert_to_mode (TYPE_MODE (integer_type_node), bytes_rtx,
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TYPE_UNSIGNED (integer_type_node)),
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TYPE_MODE (integer_type_node));
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#endif
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}
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/* The maximum number of bytes to copy using pairs of load/store instructions.
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@ -1260,11 +1260,6 @@ L2: .word STATIC
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} \
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while (0)
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/* Library calls. */
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/* Generate calls to memcpy, memcmp and memset. */
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#define TARGET_MEM_FUNCTIONS
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#define RETURN_ADDR_RTX(COUNT, FRAME) m32r_return_addr (COUNT)
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#define INCOMING_RETURN_ADDR_RTX gen_rtx_REG (Pmode, RETURN_ADDR_REGNUM)
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@ -953,9 +953,6 @@ extern const enum reg_class reg_class_from_letter[];
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#define WORD_REGISTER_OPERATIONS
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/* Implicit library calls should use memcpy, not bcopy, etc. */
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#define TARGET_MEM_FUNCTIONS
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/* Assembler output control. */
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#define ASM_COMMENT_START "\t//"
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16
gcc/config/memcmp.c
Normal file
16
gcc/config/memcmp.c
Normal file
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@ -0,0 +1,16 @@
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/* Public domain. */
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#include <stddef.h>
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int
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memcmp (const void *str1, const void *str2, size_t count)
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{
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const unsigned char *s1 = str1;
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const unsigned char *s2 = str2;
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while (count-- > 0)
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{
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if (*s1++ != *s2++)
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return s1[-1] < s2[-1] ? -1 : 1;
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}
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return 0;
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}
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12
gcc/config/memcpy.c
Normal file
12
gcc/config/memcpy.c
Normal file
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@ -0,0 +1,12 @@
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/* Public domain. */
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#include <stddef.h>
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void *
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memcpy (void *dest, const void *src, size_t len)
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{
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char *d = dest;
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const char *s = src;
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while (len--)
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*d++ = *s++;
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return dest;
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}
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20
gcc/config/memmove.c
Normal file
20
gcc/config/memmove.c
Normal file
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@ -0,0 +1,20 @@
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/* Public domain. */
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#include <stddef.h>
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void *
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memmove (void *dest, const void *src, size_t len)
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{
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char *d = dest;
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const char *s = src;
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if (d < s)
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while (len--)
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*d++ = *s++;
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else
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{
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char *lasts = s + (len-1);
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char *lastd = d + (len-1);
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while (len--)
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*lastd-- = *lasts--;
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}
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return dest;
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}
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11
gcc/config/memset.c
Normal file
11
gcc/config/memset.c
Normal file
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@ -0,0 +1,11 @@
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/* Public domain. */
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#include <stddef.h>
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void *
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memset (void *dest, int val, size_t len)
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{
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unsigned char *ptr = dest;
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while (len-- > 0)
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*ptr++ = val;
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return dest;
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}
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@ -3363,9 +3363,6 @@ while (0)
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#define DONT_ACCESS_GBLS_AFTER_EPILOGUE (TARGET_ABICALLS && !TARGET_OLDABI)
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/* Generate calls to memcpy, etc., not bcopy, etc. */
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#define TARGET_MEM_FUNCTIONS
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#ifndef __mips16
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/* Since the bits of the _init and _fini function is spread across
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many object files, each potentially with its own GP, we must assume
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|
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@ -806,11 +806,6 @@ typedef struct { int regs; int lib; } CUMULATIVE_ARGS;
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mmix_initialize_trampoline (ADDR, FNADDR, STATIC_CHAIN)
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|
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/* Node: Library Calls */
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#define TARGET_MEM_FUNCTIONS
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|
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|
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/* Node: Addressing Modes */
|
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#define CONSTANT_ADDRESS_P(X) \
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|
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@ -159,11 +159,6 @@ Boston, MA 02111-1307, USA. */
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#undef TARGET_HAS_F_SETLKW
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#define TARGET_HAS_F_SETLKW
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/* Implicit library calls should use memcpy, not bcopy, etc. */
|
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|
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#undef TARGET_MEM_FUNCTIONS
|
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#define TARGET_MEM_FUNCTIONS 1
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|
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/* Handle #pragma weak and #pragma pack. */
|
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|
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#define HANDLE_SYSV_PRAGMA 1
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|
|
|
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|
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@ -130,13 +130,6 @@ Boston, MA 02111-1307, USA. */
|
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|
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/* Runtime target specification. */
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|
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/* Implicit calls to library routines. */
|
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|
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/* Use memcpy and memset instead of bcopy and bzero. */
|
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#ifndef TARGET_MEM_FUNCTIONS
|
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#define TARGET_MEM_FUNCTIONS
|
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#endif
|
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|
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/* Miscellaneous parameters. */
|
||||
|
||||
/* Controlling debugging info: dbx options. */
|
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|
|
|
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|
|
@ -500,9 +500,6 @@ do { \
|
|||
when given unaligned data. */
|
||||
#define STRICT_ALIGNMENT 1
|
||||
|
||||
/* Generate calls to memcpy, memcmp and memset. */
|
||||
#define TARGET_MEM_FUNCTIONS
|
||||
|
||||
/* Value is 1 if it is a good idea to tie two pseudo registers
|
||||
when one has mode MODE1 and one has mode MODE2.
|
||||
If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2,
|
||||
|
|
|
|||
|
|
@ -1,5 +1,7 @@
|
|||
TARGET_LIBGCC2_CFLAGS = -O2 -mfloat32
|
||||
LIB2FUNCS_EXTRA = $(srcdir)/config/udivmod.c $(srcdir)/config/udivmodsi4.c
|
||||
LIB2FUNCS_EXTRA = $(srcdir)/config/udivmod.c $(srcdir)/config/udivmodsi4.c \
|
||||
$(srcdir)/config/memcmp.c $(srcdir)/config/memcpy.c \
|
||||
$(srcdir)/config/memmove.c $(srcdir)/config/memset.c
|
||||
# floating point emulation libraries
|
||||
|
||||
FPBIT = fp-bit.c
|
||||
|
|
|
|||
|
|
@ -2217,10 +2217,6 @@ extern int rs6000_compare_fp_p;
|
|||
the end of the line. */
|
||||
#define ASM_COMMENT_START " #"
|
||||
|
||||
/* Implicit library calls should use memcpy, not bcopy, etc. */
|
||||
|
||||
#define TARGET_MEM_FUNCTIONS
|
||||
|
||||
/* Flag to say the TOC is initialized */
|
||||
extern int toc_initialized;
|
||||
|
||||
|
|
|
|||
|
|
@ -21,11 +21,6 @@ Boston, MA 02111-1307, USA. */
|
|||
/* The system headers under RTEMS are C++-aware. */
|
||||
#define NO_IMPLICIT_EXTERN_C
|
||||
|
||||
/* Generate calls to memcpy, memcmp and memset. */
|
||||
#ifndef TARGET_MEM_FUNCTIONS
|
||||
#define TARGET_MEM_FUNCTIONS
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Dummy start/end specification to let linker work as
|
||||
* needed by autoconf scripts using this compiler.
|
||||
|
|
|
|||
|
|
@ -722,12 +722,6 @@ CUMULATIVE_ARGS;
|
|||
s390_trampoline_template (FILE)
|
||||
|
||||
|
||||
/* Library calls. */
|
||||
|
||||
/* We should use memcpy, not bcopy. */
|
||||
#define TARGET_MEM_FUNCTIONS
|
||||
|
||||
|
||||
/* Addressing modes, and classification of registers for them. */
|
||||
|
||||
/* Recognize any constant value that is a valid address. */
|
||||
|
|
|
|||
|
|
@ -3232,10 +3232,6 @@ enum mdep_reorg_phase_e
|
|||
|
||||
extern enum mdep_reorg_phase_e mdep_reorg_phase;
|
||||
|
||||
/* Generate calls to memcpy, memcmp and memset. */
|
||||
|
||||
#define TARGET_MEM_FUNCTIONS
|
||||
|
||||
/* Handle Renesas compiler's pragmas. */
|
||||
#define REGISTER_TARGET_PRAGMAS() do { \
|
||||
c_register_pragma (0, "interrupt", sh_pr_interrupt); \
|
||||
|
|
|
|||
|
|
@ -2207,9 +2207,6 @@ do { \
|
|||
/* Specify the machine mode used for addresses. */
|
||||
#define Pmode (TARGET_ARCH64 ? DImode : SImode)
|
||||
|
||||
/* Generate calls to memcpy, memcmp and memset. */
|
||||
#define TARGET_MEM_FUNCTIONS
|
||||
|
||||
/* Given a comparison code (EQ, NE, etc.) and the first operand of a COMPARE,
|
||||
return the mode to be used for the comparison. For floating-point,
|
||||
CCFP[E]mode is used. CC_NOOVmode should be used when the first operand
|
||||
|
|
|
|||
|
|
@ -497,10 +497,6 @@ enum reg_class
|
|||
xstormy16_initialize_trampoline (ADDR, FNADDR, STATIC_CHAIN)
|
||||
|
||||
|
||||
/* Implicit Calls to Library Routines */
|
||||
|
||||
#define TARGET_MEM_FUNCTIONS
|
||||
|
||||
/* Define this macro to override the type used by the library routines to pick
|
||||
up arguments of type `float'. (By default, they use a union of `float' and
|
||||
`int'.)
|
||||
|
|
|
|||
|
|
@ -70,10 +70,6 @@ Boston, MA 02111-1307, USA. */
|
|||
|
||||
#define NO_DOLLAR_IN_LABEL
|
||||
|
||||
/* Implicit library calls should use memcpy, not bcopy, etc. */
|
||||
|
||||
#define TARGET_MEM_FUNCTIONS
|
||||
|
||||
/* System V Release 3 uses COFF debugging info. */
|
||||
|
||||
#define SDB_DEBUGGING_INFO 1
|
||||
|
|
|
|||
3
gcc/config/vax/t-memfuncs
Normal file
3
gcc/config/vax/t-memfuncs
Normal file
|
|
@ -0,0 +1,3 @@
|
|||
LIB2FUNCS_EXTRA = \
|
||||
$(srcdir)/config/memcmp.c $(srcdir)/config/memcpy.c \
|
||||
$(srcdir)/config/memmove.c $(srcdir)/config/memset.c
|
||||
|
|
@ -5437,9 +5437,9 @@ or @option{-nodefaultlibs} is used.
|
|||
Do not use the standard system libraries when linking.
|
||||
Only the libraries you specify will be passed to the linker.
|
||||
The standard startup files are used normally, unless @option{-nostartfiles}
|
||||
is used. The compiler may generate calls to memcmp, memset, and memcpy
|
||||
for System V (and ISO C) environments or to bcopy and bzero for
|
||||
BSD environments. These entries are usually resolved by entries in
|
||||
is used. The compiler may generate calls to @code{memcmp},
|
||||
@code{memset}, @code{memcpy} and @code{memmove}.
|
||||
These entries are usually resolved by entries in
|
||||
libc. These entry points should be supplied through some other
|
||||
mechanism when this option is specified.
|
||||
|
||||
|
|
@ -5447,9 +5447,9 @@ mechanism when this option is specified.
|
|||
@opindex nostdlib
|
||||
Do not use the standard system startup files or libraries when linking.
|
||||
No startup files and only the libraries you specify will be passed to
|
||||
the linker. The compiler may generate calls to memcmp, memset, and memcpy
|
||||
for System V (and ISO C) environments or to bcopy and bzero for
|
||||
BSD environments. These entries are usually resolved by entries in
|
||||
the linker. The compiler may generate calls to @code{memcmp}, @code{memset},
|
||||
@code{memcpy} and @code{memmove}.
|
||||
These entries are usually resolved by entries in
|
||||
libc. These entry points should be supplied through some other
|
||||
mechanism when this option is specified.
|
||||
|
||||
|
|
|
|||
|
|
@ -145,9 +145,7 @@ GNU C library). @xref{Standard Libraries,,Standard Libraries}.
|
|||
Most of the compiler support routines used by GCC are present in
|
||||
@file{libgcc}, but there are a few exceptions. GCC requires the
|
||||
freestanding environment provide @code{memcpy}, @code{memmove},
|
||||
@code{memset} and @code{memcmp}. Some older ports of GCC are
|
||||
configured to use the BSD @code{bcopy}, @code{bzero} and @code{bcmp}
|
||||
functions instead, but this is deprecated for new ports.
|
||||
@code{memset} and @code{memcmp}.
|
||||
Finally, if @code{__builtin_trap} is used, and the target does
|
||||
not implement the @code{trap} pattern, then GCC will emit a call
|
||||
to @code{abort}.
|
||||
|
|
|
|||
|
|
@ -4811,17 +4811,6 @@ refers to the global ``variable'' @code{errno}. (On certain systems,
|
|||
macro, a reasonable default is used.
|
||||
@end defmac
|
||||
|
||||
@cindex @code{bcopy}, implicit usage
|
||||
@cindex @code{memcpy}, implicit usage
|
||||
@cindex @code{memmove}, implicit usage
|
||||
@cindex @code{bzero}, implicit usage
|
||||
@cindex @code{memset}, implicit usage
|
||||
@defmac TARGET_MEM_FUNCTIONS
|
||||
Define this macro if GCC should generate calls to the ISO C
|
||||
(and System V) library functions @code{memcpy}, @code{memmove} and
|
||||
@code{memset} rather than the BSD functions @code{bcopy} and @code{bzero}.
|
||||
@end defmac
|
||||
|
||||
@cindex C99 math functions, implicit usage
|
||||
@defmac TARGET_C99_FUNCTIONS
|
||||
When this macro is nonzero, GCC will implicitly optimize @code{sin} calls into
|
||||
|
|
|
|||
122
gcc/expr.c
122
gcc/expr.c
|
|
@ -77,14 +77,6 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
|
|||
#endif
|
||||
#endif
|
||||
|
||||
/* Convert defined/undefined to boolean. */
|
||||
#ifdef TARGET_MEM_FUNCTIONS
|
||||
#undef TARGET_MEM_FUNCTIONS
|
||||
#define TARGET_MEM_FUNCTIONS 1
|
||||
#else
|
||||
#define TARGET_MEM_FUNCTIONS 0
|
||||
#endif
|
||||
|
||||
|
||||
/* If this is nonzero, we do not bother generating VOLATILE
|
||||
around volatile memory references, and we are willing to
|
||||
|
|
@ -1511,7 +1503,7 @@ emit_block_move_via_movstr (rtx x, rtx y, rtx size, unsigned int align)
|
|||
return false;
|
||||
}
|
||||
|
||||
/* A subroutine of emit_block_move. Expand a call to memcpy or bcopy.
|
||||
/* A subroutine of emit_block_move. Expand a call to memcpy.
|
||||
Return the return value from memcpy, 0 otherwise. */
|
||||
|
||||
static rtx
|
||||
|
|
@ -1550,10 +1542,7 @@ emit_block_move_via_libcall (rtx dst, rtx src, rtx size)
|
|||
dst_tree = make_tree (ptr_type_node, dst_addr);
|
||||
src_tree = make_tree (ptr_type_node, src_addr);
|
||||
|
||||
if (TARGET_MEM_FUNCTIONS)
|
||||
size_mode = TYPE_MODE (sizetype);
|
||||
else
|
||||
size_mode = TYPE_MODE (unsigned_type_node);
|
||||
size_mode = TYPE_MODE (sizetype);
|
||||
|
||||
size = convert_to_mode (size_mode, size, 1);
|
||||
size = copy_to_mode_reg (size_mode, size);
|
||||
|
|
@ -1562,27 +1551,14 @@ emit_block_move_via_libcall (rtx dst, rtx src, rtx size)
|
|||
memcpy in this context. This could be a user call to memcpy and
|
||||
the user may wish to examine the return value from memcpy. For
|
||||
targets where libcalls and normal calls have different conventions
|
||||
for returning pointers, we could end up generating incorrect code.
|
||||
for returning pointers, we could end up generating incorrect code. */
|
||||
|
||||
For convenience, we generate the call to bcopy this way as well. */
|
||||
|
||||
if (TARGET_MEM_FUNCTIONS)
|
||||
size_tree = make_tree (sizetype, size);
|
||||
else
|
||||
size_tree = make_tree (unsigned_type_node, size);
|
||||
size_tree = make_tree (sizetype, size);
|
||||
|
||||
fn = emit_block_move_libcall_fn (true);
|
||||
arg_list = tree_cons (NULL_TREE, size_tree, NULL_TREE);
|
||||
if (TARGET_MEM_FUNCTIONS)
|
||||
{
|
||||
arg_list = tree_cons (NULL_TREE, src_tree, arg_list);
|
||||
arg_list = tree_cons (NULL_TREE, dst_tree, arg_list);
|
||||
}
|
||||
else
|
||||
{
|
||||
arg_list = tree_cons (NULL_TREE, dst_tree, arg_list);
|
||||
arg_list = tree_cons (NULL_TREE, src_tree, arg_list);
|
||||
}
|
||||
arg_list = tree_cons (NULL_TREE, src_tree, arg_list);
|
||||
arg_list = tree_cons (NULL_TREE, dst_tree, arg_list);
|
||||
|
||||
/* Now we have to build up the CALL_EXPR itself. */
|
||||
call_expr = build1 (ADDR_EXPR, build_pointer_type (TREE_TYPE (fn)), fn);
|
||||
|
|
@ -1601,7 +1577,7 @@ emit_block_move_via_libcall (rtx dst, rtx src, rtx size)
|
|||
gen_rtx_CLOBBER (VOIDmode, dst),
|
||||
NULL_RTX));
|
||||
|
||||
return TARGET_MEM_FUNCTIONS ? retval : NULL_RTX;
|
||||
return retval;
|
||||
}
|
||||
|
||||
/* A subroutine of emit_block_move_via_libcall. Create the tree node
|
||||
|
|
@ -1617,20 +1593,10 @@ init_block_move_fn (const char *asmspec)
|
|||
{
|
||||
tree args, fn;
|
||||
|
||||
if (TARGET_MEM_FUNCTIONS)
|
||||
{
|
||||
fn = get_identifier ("memcpy");
|
||||
args = build_function_type_list (ptr_type_node, ptr_type_node,
|
||||
const_ptr_type_node, sizetype,
|
||||
NULL_TREE);
|
||||
}
|
||||
else
|
||||
{
|
||||
fn = get_identifier ("bcopy");
|
||||
args = build_function_type_list (void_type_node, const_ptr_type_node,
|
||||
ptr_type_node, unsigned_type_node,
|
||||
NULL_TREE);
|
||||
}
|
||||
fn = get_identifier ("memcpy");
|
||||
args = build_function_type_list (ptr_type_node, ptr_type_node,
|
||||
const_ptr_type_node, sizetype,
|
||||
NULL_TREE);
|
||||
|
||||
fn = build_decl (FUNCTION_DECL, fn, args);
|
||||
DECL_EXTERNAL (fn) = 1;
|
||||
|
|
@ -2642,7 +2608,7 @@ clear_storage_via_clrstr (rtx object, rtx size, unsigned int align)
|
|||
return false;
|
||||
}
|
||||
|
||||
/* A subroutine of clear_storage. Expand a call to memset or bzero.
|
||||
/* A subroutine of clear_storage. Expand a call to memset.
|
||||
Return the return value of memset, 0 otherwise. */
|
||||
|
||||
static rtx
|
||||
|
|
@ -2673,10 +2639,7 @@ clear_storage_via_libcall (rtx object, rtx size)
|
|||
|
||||
object = copy_to_mode_reg (Pmode, XEXP (object, 0));
|
||||
|
||||
if (TARGET_MEM_FUNCTIONS)
|
||||
size_mode = TYPE_MODE (sizetype);
|
||||
else
|
||||
size_mode = TYPE_MODE (unsigned_type_node);
|
||||
size_mode = TYPE_MODE (sizetype);
|
||||
size = convert_to_mode (size_mode, size, 1);
|
||||
size = copy_to_mode_reg (size_mode, size);
|
||||
|
||||
|
|
@ -2684,20 +2647,14 @@ clear_storage_via_libcall (rtx object, rtx size)
|
|||
memset in this context. This could be a user call to memset and
|
||||
the user may wish to examine the return value from memset. For
|
||||
targets where libcalls and normal calls have different conventions
|
||||
for returning pointers, we could end up generating incorrect code.
|
||||
|
||||
For convenience, we generate the call to bzero this way as well. */
|
||||
for returning pointers, we could end up generating incorrect code. */
|
||||
|
||||
object_tree = make_tree (ptr_type_node, object);
|
||||
if (TARGET_MEM_FUNCTIONS)
|
||||
size_tree = make_tree (sizetype, size);
|
||||
else
|
||||
size_tree = make_tree (unsigned_type_node, size);
|
||||
size_tree = make_tree (sizetype, size);
|
||||
|
||||
fn = clear_storage_libcall_fn (true);
|
||||
arg_list = tree_cons (NULL_TREE, size_tree, NULL_TREE);
|
||||
if (TARGET_MEM_FUNCTIONS)
|
||||
arg_list = tree_cons (NULL_TREE, integer_zero_node, arg_list);
|
||||
arg_list = tree_cons (NULL_TREE, integer_zero_node, arg_list);
|
||||
arg_list = tree_cons (NULL_TREE, object_tree, arg_list);
|
||||
|
||||
/* Now we have to build up the CALL_EXPR itself. */
|
||||
|
|
@ -2713,7 +2670,7 @@ clear_storage_via_libcall (rtx object, rtx size)
|
|||
if (RTX_UNCHANGING_P (object))
|
||||
emit_insn (gen_rtx_CLOBBER (VOIDmode, object));
|
||||
|
||||
return (TARGET_MEM_FUNCTIONS ? retval : NULL_RTX);
|
||||
return retval;
|
||||
}
|
||||
|
||||
/* A subroutine of clear_storage_via_libcall. Create the tree node
|
||||
|
|
@ -2729,19 +2686,10 @@ init_block_clear_fn (const char *asmspec)
|
|||
{
|
||||
tree fn, args;
|
||||
|
||||
if (TARGET_MEM_FUNCTIONS)
|
||||
{
|
||||
fn = get_identifier ("memset");
|
||||
args = build_function_type_list (ptr_type_node, ptr_type_node,
|
||||
integer_type_node, sizetype,
|
||||
NULL_TREE);
|
||||
}
|
||||
else
|
||||
{
|
||||
fn = get_identifier ("bzero");
|
||||
args = build_function_type_list (void_type_node, ptr_type_node,
|
||||
unsigned_type_node, NULL_TREE);
|
||||
}
|
||||
fn = get_identifier ("memset");
|
||||
args = build_function_type_list (ptr_type_node, ptr_type_node,
|
||||
integer_type_node, sizetype,
|
||||
NULL_TREE);
|
||||
|
||||
fn = build_decl (FUNCTION_DECL, fn, args);
|
||||
DECL_EXTERNAL (fn) = 1;
|
||||
|
|
@ -4029,21 +3977,12 @@ expand_assignment (tree to, tree from, int want_value)
|
|||
size = expr_size (from);
|
||||
from_rtx = expand_expr (from, NULL_RTX, VOIDmode, 0);
|
||||
|
||||
if (TARGET_MEM_FUNCTIONS)
|
||||
emit_library_call (memmove_libfunc, LCT_NORMAL,
|
||||
VOIDmode, 3, XEXP (to_rtx, 0), Pmode,
|
||||
XEXP (from_rtx, 0), Pmode,
|
||||
convert_to_mode (TYPE_MODE (sizetype),
|
||||
size, TYPE_UNSIGNED (sizetype)),
|
||||
TYPE_MODE (sizetype));
|
||||
else
|
||||
emit_library_call (bcopy_libfunc, LCT_NORMAL,
|
||||
VOIDmode, 3, XEXP (from_rtx, 0), Pmode,
|
||||
XEXP (to_rtx, 0), Pmode,
|
||||
convert_to_mode (TYPE_MODE (integer_type_node),
|
||||
size,
|
||||
TYPE_UNSIGNED (integer_type_node)),
|
||||
TYPE_MODE (integer_type_node));
|
||||
emit_library_call (memmove_libfunc, LCT_NORMAL,
|
||||
VOIDmode, 3, XEXP (to_rtx, 0), Pmode,
|
||||
XEXP (from_rtx, 0), Pmode,
|
||||
convert_to_mode (TYPE_MODE (sizetype),
|
||||
size, TYPE_UNSIGNED (sizetype)),
|
||||
TYPE_MODE (sizetype));
|
||||
|
||||
preserve_temp_slots (to_rtx);
|
||||
free_temp_slots ();
|
||||
|
|
@ -5207,10 +5146,10 @@ store_constructor (tree exp, rtx target, int cleared, HOST_WIDE_INT size)
|
|||
and then "or" in whatever non-constant ranges we need in addition.
|
||||
|
||||
If a large set is all zero or all ones, it is
|
||||
probably better to set it using memset (if available) or bzero.
|
||||
probably better to set it using memset.
|
||||
Also, if a large set has just a single range, it may also be
|
||||
better to first clear all the first clear the set (using
|
||||
bzero/memset), and set the bits we want. */
|
||||
memset), and set the bits we want. */
|
||||
|
||||
/* Check for all zeros. */
|
||||
if (elt == NULL_TREE && size > 0)
|
||||
|
|
@ -5342,8 +5281,7 @@ store_constructor (tree exp, rtx target, int cleared, HOST_WIDE_INT size)
|
|||
|
||||
/* Optimization: If startbit and endbit are constants divisible
|
||||
by BITS_PER_UNIT, call memset instead. */
|
||||
if (TARGET_MEM_FUNCTIONS
|
||||
&& TREE_CODE (startbit) == INTEGER_CST
|
||||
if (TREE_CODE (startbit) == INTEGER_CST
|
||||
&& TREE_CODE (endbit) == INTEGER_CST
|
||||
&& (startb = TREE_INT_CST_LOW (startbit)) % BITS_PER_UNIT == 0
|
||||
&& (endb = TREE_INT_CST_LOW (endbit) + 1) % BITS_PER_UNIT == 0)
|
||||
|
|
|
|||
|
|
@ -27,11 +27,8 @@ enum libfunc_index
|
|||
LTI_abort,
|
||||
LTI_memcpy,
|
||||
LTI_memmove,
|
||||
LTI_bcopy,
|
||||
LTI_memcmp,
|
||||
LTI_bcmp,
|
||||
LTI_memset,
|
||||
LTI_bzero,
|
||||
LTI_setbits,
|
||||
|
||||
LTI_unwind_resume,
|
||||
|
|
@ -58,11 +55,8 @@ extern GTY(()) rtx libfunc_table[LTI_MAX];
|
|||
#define abort_libfunc (libfunc_table[LTI_abort])
|
||||
#define memcpy_libfunc (libfunc_table[LTI_memcpy])
|
||||
#define memmove_libfunc (libfunc_table[LTI_memmove])
|
||||
#define bcopy_libfunc (libfunc_table[LTI_bcopy])
|
||||
#define memcmp_libfunc (libfunc_table[LTI_memcmp])
|
||||
#define bcmp_libfunc (libfunc_table[LTI_bcmp])
|
||||
#define memset_libfunc (libfunc_table[LTI_memset])
|
||||
#define bzero_libfunc (libfunc_table[LTI_bzero])
|
||||
#define setbits_libfunc (libfunc_table[LTI_setbits])
|
||||
|
||||
#define unwind_resume_libfunc (libfunc_table[LTI_unwind_resume])
|
||||
|
|
|
|||
11
gcc/optabs.c
11
gcc/optabs.c
|
|
@ -3744,15 +3744,9 @@ prepare_cmp_insn (rtx *px, rtx *py, enum rtx_code *pcomparison, rtx size,
|
|||
return;
|
||||
}
|
||||
|
||||
/* Otherwise call a library function, memcmp if we've got it,
|
||||
bcmp otherwise. */
|
||||
#ifdef TARGET_MEM_FUNCTIONS
|
||||
/* Otherwise call a library function, memcmp. */
|
||||
libfunc = memcmp_libfunc;
|
||||
length_type = sizetype;
|
||||
#else
|
||||
libfunc = bcmp_libfunc;
|
||||
length_type = integer_type_node;
|
||||
#endif
|
||||
result_mode = TYPE_MODE (integer_type_node);
|
||||
cmp_mode = TYPE_MODE (length_type);
|
||||
size = convert_to_mode (TYPE_MODE (length_type), size,
|
||||
|
|
@ -5522,11 +5516,8 @@ init_optabs (void)
|
|||
abort_libfunc = init_one_libfunc ("abort");
|
||||
memcpy_libfunc = init_one_libfunc ("memcpy");
|
||||
memmove_libfunc = init_one_libfunc ("memmove");
|
||||
bcopy_libfunc = init_one_libfunc ("bcopy");
|
||||
memcmp_libfunc = init_one_libfunc ("memcmp");
|
||||
bcmp_libfunc = init_one_libfunc ("__gcc_bcmp");
|
||||
memset_libfunc = init_one_libfunc ("memset");
|
||||
bzero_libfunc = init_one_libfunc ("bzero");
|
||||
setbits_libfunc = init_one_libfunc ("__setbits");
|
||||
|
||||
unwind_resume_libfunc = init_one_libfunc (USING_SJLJ_EXCEPTIONS
|
||||
|
|
|
|||
|
|
@ -618,7 +618,7 @@ extern int snprintf (char *, size_t, const char *, ...);
|
|||
DBX_OUTPUT_STANDARD_TYPES BUILTIN_SETJMP_FRAME_VALUE \
|
||||
SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \
|
||||
SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \
|
||||
DEFAULT_MAIN_RETURN
|
||||
DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS
|
||||
|
||||
/* Hooks that are no longer used. */
|
||||
#pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue